1545425040 has 80 divisors (see below), whose sum is σ = 5042980800. Its totient is φ = 390422016.

The previous prime is 1545425023. The next prime is 1545425041. The reversal of 1545425040 is 405245451.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1545424989 and 1545425007.

It is not an unprimeable number, because it can be changed into a prime (1545425041) 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, 164895 + ... + 174014.

It is an arithmetic number, because the mean of its divisors is an integer number (63037260).

Almost surely, 2^1545425040 is an apocalyptic number.

1545425040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1545425040 is an abundant number, since it is smaller than the sum of its proper divisors (3497555760).

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

1545425040 is a wasteful number, since it uses less digits than its factorization.

1545425040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338944 (or 338938 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 1545425040 is about 39311.8943832525. The cubic root of 1545425040 is about 1156.1547866472.

The spelling of 1545425040 in words is "one billion, five hundred forty-five million, four hundred twenty-five thousand, forty".