1401632 has 12 divisors (see below), whose sum is σ = 2759526. Its totient is φ = 700800.

The previous prime is 1401629. The next prime is 1401641. The reversal of 1401632 is 2361041.

It can be written as a sum of positive squares in only one way, i.e., 1175056 + 226576 = 1084^2 + 476^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1401632.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21869 + ... + 21932.

2^1401632 is an apocalyptic number.

It is an amenable number.

1401632 is a deficient number, since it is larger than the sum of its proper divisors (1357894).

1401632 is an equidigital number, since it uses as much as digits as its factorization.

1401632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43811 (or 43803 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1401632 is about 1183.9054016263. The cubic root of 1401632 is about 111.9123463843.

Adding to 1401632 its reverse (2361041), we get a palindrome (3762673).

The spelling of 1401632 in words is "one million, four hundred one thousand, six hundred thirty-two".