1253432016 has 40 divisors (see below), whose sum is σ = 3597815360. Its totient is φ = 417810528.

The previous prime is 1253432009. The next prime is 1253432023. The reversal of 1253432016 is 6102343521.

It is an interprime number because it is at equal distance from previous prime (1253432009) and next prime (1253432023).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 1450300 + ... + 1451163.

It is an arithmetic number, because the mean of its divisors is an integer number (89945384).

Almost surely, 2^1253432016 is an apocalyptic number.

1253432016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1253432016 is an abundant number, since it is smaller than the sum of its proper divisors (2344383344).

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

1253432016 is a wasteful number, since it uses less digits than its factorization.

1253432016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2901480 (or 2901468 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1253432016 is about 35403.8418254291. The cubic root of 1253432016 is about 1078.2023180240.

Adding to 1253432016 its reverse (6102343521), we get a palindrome (7355775537).

The spelling of 1253432016 in words is "one billion, two hundred fifty-three million, four hundred thirty-two thousand, sixteen".