1400134164 has 96 divisors (see below), whose sum is σ = 3863319936. Its totient is φ = 389076480.

The previous prime is 1400134163. The next prime is 1400134193. The reversal of 1400134164 is 4614310041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400134163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 266814 + ... + 272010.

It is an arithmetic number, because the mean of its divisors is an integer number (40242916).

Almost surely, 2^1400134164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400134164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1931659968).

1400134164 is an abundant number, since it is smaller than the sum of its proper divisors (2463185772).

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

1400134164 is a wasteful number, since it uses less digits than its factorization.

1400134164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5385 (or 5383 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1400134164 is about 37418.3666666518. The cubic root of 1400134164 is about 1118.7246761264.

The spelling of 1400134164 in words is "one billion, four hundred million, one hundred thirty-four thousand, one hundred sixty-four".