245452540 has 24 divisors (see below), whose sum is σ = 525178080. Its totient is φ = 96328128.

The previous prime is 245452517. The next prime is 245452541. The reversal of 245452540 is 45254542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245452541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114720 + ... + 116839.

It is an arithmetic number, because the mean of its divisors is an integer number (21882420).

Almost surely, 2^245452540 is an apocalyptic number.

245452540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245452540 is an abundant number, since it is smaller than the sum of its proper divisors (279725540).

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

245452540 is a wasteful number, since it uses less digits than its factorization.

245452540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231621 (or 231619 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 245452540 is about 15666.9250333306. The cubic root of 245452540 is about 626.1175015137.

The spelling of 245452540 in words is "two hundred forty-five million, four hundred fifty-two thousand, five hundred forty".