245697408 has 256 divisors, whose sum is σ = 828403200. Its totient is φ = 70963200.

The previous prime is 245697401. The next prime is 245697433. The reversal of 245697408 is 804796542.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245697401) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 874228 + ... + 874508.

It is an arithmetic number, because the mean of its divisors is an integer number (3235950).

Almost surely, 2^245697408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245697408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414201600).

245697408 is an abundant number, since it is smaller than the sum of its proper divisors (582705792).

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

245697408 is a wasteful number, since it uses less digits than its factorization.

245697408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 245697408 is about 15674.7378925454. The cubic root of 245697408 is about 626.3256411198.

The spelling of 245697408 in words is "two hundred forty-five million, six hundred ninety-seven thousand, four hundred eight".