1051489404 has 48 divisors (see below), whose sum is σ = 3115526400. Its totient is φ = 300425328.

The previous prime is 1051489399. The next prime is 1051489427. The reversal of 1051489404 is 4049841501.

1051489404 is a `hidden beast` number, since 105 + 148 + 9 + 404 = 666.

It is a super-2 number, since 2×1051489404² = 2211259933448550432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 694674 + ... + 696185.

It is an arithmetic number, because the mean of its divisors is an integer number (64906800).

Almost surely, 2^1051489404 is an apocalyptic number.

1051489404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1051489404 is an abundant number, since it is smaller than the sum of its proper divisors (2064036996).

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

1051489404 is a wasteful number, since it uses less digits than its factorization.

1051489404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390879 (or 1390871 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1051489404 is about 32426.6773506013. The cubic root of 1051489404 is about 1016.8767090644.

The spelling of 1051489404 in words is "one billion, fifty-one million, four hundred eighty-nine thousand, four hundred four".