1505425440 has 96 divisors (see below), whose sum is σ = 4948304256. Its totient is φ = 383989760.

The previous prime is 1505425421. The next prime is 1505425447. The reversal of 1505425440 is 445245051.

It is a tau number, because it is divible by the number of its divisors (96).

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 = 1505425398 and 1505425407.

It is not an unprimeable number, because it can be changed into a prime (1505425447) 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, 57141 + ... + 79220.

It is an arithmetic number, because the mean of its divisors is an integer number (51544836).

Almost surely, 2^1505425440 is an apocalyptic number.

1505425440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1505425440 is an abundant number, since it is smaller than the sum of its proper divisors (3442878816).

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

1505425440 is a wasteful number, since it uses less digits than its factorization.

1505425440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136402 (or 136394 counting only the distinct ones).

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

The square root of 1505425440 is about 38799.8123706804. The cubic root of 1505425440 is about 1146.0927104746.

The spelling of 1505425440 in words is "one billion, five hundred five million, four hundred twenty-five thousand, four hundred forty".