245155320 has 48 divisors (see below), whose sum is σ = 796755960. Its totient is φ = 65374656.

The previous prime is 245155307. The next prime is 245155327. The reversal of 245155320 is 23551542.

It is a happy number.

It is a super-2 number, since 2×245155320² = 120202261848604800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245155327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340134 + ... + 340853.

Almost surely, 2^245155320 is an apocalyptic number.

245155320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245155320 is an abundant number, since it is smaller than the sum of its proper divisors (551600640).

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

245155320 is a wasteful number, since it uses less digits than its factorization.

245155320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681004 (or 680997 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 245155320 is about 15657.4365718019. The cubic root of 245155320 is about 625.8646762510.

The spelling of 245155320 in words is "two hundred forty-five million, one hundred fifty-five thousand, three hundred twenty".