1245804490 has 16 divisors (see below), whose sum is σ = 2562797952. Its totient is φ = 427132944.

The previous prime is 1245804479. The next prime is 1245804503. The reversal of 1245804490 is 944085421.

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, 8898534 + ... + 8898673.

It is an arithmetic number, because the mean of its divisors is an integer number (160174872).

Almost surely, 2^1245804490 is an apocalyptic number.

1245804490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1245804490 is an abundant number, since it is smaller than the sum of its proper divisors (1316993462).

1245804490 is a wasteful number, since it uses less digits than its factorization.

1245804490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17797221.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1245804490 is about 35295.9557173340. The cubic root of 1245804490 is about 1076.0108004840.

The spelling of 1245804490 in words is "one billion, two hundred forty-five million, eight hundred four thousand, four hundred ninety".