491025948 has 24 divisors (see below), whose sum is σ = 1309402752. Its totient is φ = 140293104.

The previous prime is 491025937. The next prime is 491025991. The reversal of 491025948 is 849520194.

It is a super-2 number, since 2×491025948² = 482212963218597408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 2922690 + ... + 2922857.

It is an arithmetic number, because the mean of its divisors is an integer number (54558448).

Almost surely, 2^491025948 is an apocalyptic number.

It is an amenable number.

491025948 is an abundant number, since it is smaller than the sum of its proper divisors (818376804).

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

491025948 is a wasteful number, since it uses less digits than its factorization.

491025948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5845561 (or 5845559 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 491025948 is about 22159.1053068485. The cubic root of 491025948 is about 788.9233573895.

The spelling of 491025948 in words is "four hundred ninety-one million, twenty-five thousand, nine hundred forty-eight".