40747470 has 64 divisors (see below), whose sum is σ = 104639040. Its totient is φ = 10119168.

The previous prime is 40747463. The next prime is 40747517. The reversal of 40747470 is 7474704.

It is a super-2 number, since 2×40747470² = 3320712622801800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55224 + ... + 55956.

It is an arithmetic number, because the mean of its divisors is an integer number (1634985).

Almost surely, 2^40747470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40747470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52319520).

40747470 is an abundant number, since it is smaller than the sum of its proper divisors (63891570).

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

40747470 is a wasteful number, since it uses less digits than its factorization.

40747470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869.

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 40747470 is about 6383.3744994321. The cubic root of 40747470 is about 344.1123157227.

The spelling of 40747470 in words is "forty million, seven hundred forty-seven thousand, four hundred seventy".