1025529400 has 48 divisors (see below), whose sum is σ = 2724981840. Its totient is φ = 351609600.

The previous prime is 1025529397. The next prime is 1025529431. The reversal of 1025529400 is 49255201.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 364861 + ... + 367660.

It is an arithmetic number, because the mean of its divisors is an integer number (56770455).

Almost surely, 2^1025529400 is an apocalyptic number.

1025529400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025529400 is an abundant number, since it is smaller than the sum of its proper divisors (1699452440).

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

1025529400 is a wasteful number, since it uses less digits than its factorization.

1025529400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732544 (or 732535 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1025529400 is about 32023.8879588347. The cubic root of 1025529400 is about 1008.4383932303.

The spelling of 1025529400 in words is "one billion, twenty-five million, five hundred twenty-nine thousand, four hundred".