63091490 has 32 divisors (see below), whose sum is σ = 141588864. Its totient is φ = 19664640.

The previous prime is 63091453. The next prime is 63091499. The reversal of 63091490 is 9419036.

It is a super-2 number, since 2×63091490² = 7961072220840200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63091499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40199 + ... + 41738.

It is an arithmetic number, because the mean of its divisors is an integer number (4424652).

Almost surely, 2^63091490 is an apocalyptic number.

63091490 is an abundant number, since it is smaller than the sum of its proper divisors (78497374).

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

63091490 is a wasteful number, since it uses less digits than its factorization.

63091490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81962.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 63091490 is about 7943.0151705760. The cubic root of 63091490 is about 398.0982434678.

The spelling of 63091490 in words is "sixty-three million, ninety-one thousand, four hundred ninety".