245401772 has 24 divisors (see below), whose sum is σ = 535422720. Its totient is φ = 95610960.

The previous prime is 245401763. The next prime is 245401781. The reversal of 245401772 is 277104542.

It is an interprime number because it is at equal distance from previous prime (245401763) and next prime (245401781).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398072 + ... + 398687.

It is an arithmetic number, because the mean of its divisors is an integer number (22309280).

Almost surely, 2^245401772 is an apocalyptic number.

245401772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

245401772 is an abundant number, since it is smaller than the sum of its proper divisors (290020948).

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

245401772 is a wasteful number, since it uses less digits than its factorization.

245401772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796781 (or 796779 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 245401772 is about 15665.3047209430. The cubic root of 245401772 is about 626.0743310158.

The spelling of 245401772 in words is "two hundred forty-five million, four hundred one thousand, seven hundred seventy-two".