1400432141 has 4 divisors (see below), whose sum is σ = 1400966652. Its totient is φ = 1399897632.

The previous prime is 1400432113. The next prime is 1400432153. The reversal of 1400432141 is 1412340041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 122655625 + 1277776516 = 11075^2 + 35746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400432141 is a prime.

It is a super-2 number, since 2×1400432141² = 3922420363091687762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400432741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263306 + ... + 268571.

It is an arithmetic number, because the mean of its divisors is an integer number (350241663).

Almost surely, 2^1400432141 is an apocalyptic number.

It is an amenable number.

1400432141 is a deficient number, since it is larger than the sum of its proper divisors (534511).

1400432141 is an equidigital number, since it uses as much as digits as its factorization.

1400432141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534510.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1400432141 is about 37422.3481492009. The cubic root of 1400432141 is about 1118.8040329447.

Adding to 1400432141 its reverse (1412340041), we get a palindrome (2812772182).

The spelling of 1400432141 in words is "one billion, four hundred million, four hundred thirty-two thousand, one hundred forty-one".