1409690 has 16 divisors (see below), whose sum is σ = 2625480. Its totient is φ = 544320.

The previous prime is 1409677. The next prime is 1409713. The reversal of 1409690 is 969041.

It can be written as a sum of positive squares in 4 ways, for example, as 1352569 + 57121 = 1163^2 + 239^2 .

It is a super-2 number, since 2×1409690² = 3974451792200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 2141 + ... + 2720.

2^1409690 is an apocalyptic number.

1409690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1409690 is a deficient number, since it is larger than the sum of its proper divisors (1215790).

1409690 is a wasteful number, since it uses less digits than its factorization.

1409690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4897.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 1409690 is about 1187.3036679805. The cubic root of 1409690 is about 112.1263985397.

The spelling of 1409690 in words is "one million, four hundred nine thousand, six hundred ninety".