1400628 has 12 divisors (see below), whose sum is σ = 3268160. Its totient is φ = 466872.

The previous prime is 1400627. The next prime is 1400653. The reversal of 1400628 is 8260041.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400627) 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, 58348 + ... + 58371.

2^1400628 is an apocalyptic number.

It is an amenable number.

1400628 is an abundant number, since it is smaller than the sum of its proper divisors (1867532).

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

1400628 is a wasteful number, since it uses less digits than its factorization.

1400628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116726 (or 116724 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1400628 is about 1183.4813053023. The cubic root of 1400628 is about 111.8856187709.

Adding to 1400628 its reverse (8260041), we get a palindrome (9660669).

The spelling of 1400628 in words is "one million, four hundred thousand, six hundred twenty-eight".