1400234357 has 4 divisors (see below), whose sum is σ = 1400827296. Its totient is φ = 1399641420.

The previous prime is 1400234333. The next prime is 1400234369. The reversal of 1400234357 is 7534320041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1400234357 - 2¹⁶ = 1400168821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400234557) 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, 292913 + ... + 297654.

It is an arithmetic number, because the mean of its divisors is an integer number (350206824).

Almost surely, 2^1400234357 is an apocalyptic number.

It is an amenable number.

1400234357 is a deficient number, since it is larger than the sum of its proper divisors (592939).

1400234357 is an equidigital number, since it uses as much as digits as its factorization.

1400234357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592938.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 1400234357 is about 37419.7054638328. The cubic root of 1400234357 is about 1118.7513606425.

Adding to 1400234357 its reverse (7534320041), we get a palindrome (8934554398).

The spelling of 1400234357 in words is "one billion, four hundred million, two hundred thirty-four thousand, three hundred fifty-seven".