1400043426 has 32 divisors (see below), whose sum is σ = 2886451200. Its totient is φ = 452473296.

The previous prime is 1400043413. The next prime is 1400043427. The reversal of 1400043426 is 6243400041.

It is a junction number, because it is equal to n+sod(n) for n = 1400043396 and 1400043405.

It is not an unprimeable number, because it can be changed into a prime (1400043427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6975 + ... + 53373.

It is an arithmetic number, because the mean of its divisors is an integer number (90201600).

Almost surely, 2^1400043426 is an apocalyptic number.

1400043426 is an abundant number, since it is smaller than the sum of its proper divisors (1486407774).

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

1400043426 is a wasteful number, since it uses less digits than its factorization.

1400043426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46558.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1400043426 is about 37417.1541675740. The cubic root of 1400043426 is about 1118.7005086728.

Adding to 1400043426 its reverse (6243400041), we get a palindrome (7643443467).

The spelling of 1400043426 in words is "one billion, four hundred million, forty-three thousand, four hundred twenty-six".