1400441650 has 12 divisors (see below), whose sum is σ = 2604821562. Its totient is φ = 560176640.

The previous prime is 1400441621. The next prime is 1400441681. The reversal of 1400441650 is 561440041.

It can be written as a sum of positive squares in 3 ways, for example, as 1329258681 + 71182969 = 36459^2 + 8437^2 .

It is a super-2 number, since 2×1400441650² = 3922473630109445000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14004367 + ... + 14004466.

Almost surely, 2^1400441650 is an apocalyptic number.

1400441650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1400441650 is a deficient number, since it is larger than the sum of its proper divisors (1204379912).

1400441650 is a wasteful number, since it uses less digits than its factorization.

1400441650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28008845 (or 28008840 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1400441650 is about 37422.4751987359. The cubic root of 1400441650 is about 1118.8065651830.

Adding to 1400441650 its reverse (561440041), we get a palindrome (1961881691).

The spelling of 1400441650 in words is "one billion, four hundred million, four hundred forty-one thousand, six hundred fifty".