1267404090 has 16 divisors (see below), whose sum is σ = 3041769888. Its totient is φ = 337974416.

The previous prime is 1267404071. The next prime is 1267404097. The reversal of 1267404090 is 904047621.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1267404097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21123372 + ... + 21123431.

It is an arithmetic number, because the mean of its divisors is an integer number (190110618).

Almost surely, 2^1267404090 is an apocalyptic number.

1267404090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1267404090 is an abundant number, since it is smaller than the sum of its proper divisors (1774365798).

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

1267404090 is a wasteful number, since it uses less digits than its factorization.

1267404090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42246813.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1267404090 is about 35600.6192361875. The cubic root of 1267404090 is about 1082.1937832484.

The spelling of 1267404090 in words is "one billion, two hundred sixty-seven million, four hundred four thousand, ninety".