1025724396 has 12 divisors (see below), whose sum is σ = 2393356952. Its totient is φ = 341908128.

The previous prime is 1025724361. The next prime is 1025724409. The reversal of 1025724396 is 6934275201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×1025724396³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42738505 + ... + 42738528.

Almost surely, 2^1025724396 is an apocalyptic number.

It is an amenable number.

1025724396 is an abundant number, since it is smaller than the sum of its proper divisors (1367632556).

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

1025724396 is a wasteful number, since it uses less digits than its factorization.

1025724396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85477040 (or 85477038 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 1025724396 is about 32026.9323538799. The cubic root of 1025724396 is about 1008.5023046081.

Adding to 1025724396 its reverse (6934275201), we get a palindrome (7959999597).

The spelling of 1025724396 in words is "one billion, twenty-five million, seven hundred twenty-four thousand, three hundred ninety-six".