1400023524 has 48 divisors (see below), whose sum is σ = 3440683008. Its totient is φ = 442203168.

The previous prime is 1400023523. The next prime is 1400023549. The reversal of 1400023524 is 4253200041.

It is a self number, because there is not a number n which added to its sum of digits gives 1400023524.

It is not an unprimeable number, because it can be changed into a prime (1400023523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5829 + ... + 53235.

It is an arithmetic number, because the mean of its divisors is an integer number (71680896).

Almost surely, 2^1400023524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400023524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1720341504).

1400023524 is an abundant number, since it is smaller than the sum of its proper divisors (2040659484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1400023524 is a wasteful number, since it uses less digits than its factorization.

1400023524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47544 (or 47542 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1400023524 is about 37416.8882190917. Note that the first 3 decimals coincide. The cubic root of 1400023524 is about 1118.6952077698.

Adding to 1400023524 its reverse (4253200041), we get a palindrome (5653223565).

The spelling of 1400023524 in words is "one billion, four hundred million, twenty-three thousand, five hundred twenty-four".