1025402312 has 32 divisors (see below), whose sum is σ = 2154107520. Its totient is φ = 453493440.

The previous prime is 1025402309. The next prime is 1025402321. The reversal of 1025402312 is 2132045201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154208 + ... + 160719.

It is an arithmetic number, because the mean of its divisors is an integer number (67315860).

Almost surely, 2^1025402312 is an apocalyptic number.

It is an amenable number.

1025402312 is an abundant number, since it is smaller than the sum of its proper divisors (1128705208).

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

1025402312 is a wasteful number, since it uses less digits than its factorization.

1025402312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314981 (or 314977 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1025402312 is about 32021.9036286102. The cubic root of 1025402312 is about 1008.3967348397.

Adding to 1025402312 its reverse (2132045201), we get a palindrome (3157447513).

The spelling of 1025402312 in words is "one billion, twenty-five million, four hundred two thousand, three hundred twelve".