1401764 has 24 divisors (see below), whose sum is σ = 3019968. Its totient is φ = 554400.

The previous prime is 1401761. The next prime is 1401767. The reversal of 1401764 is 4671041.

It is an interprime number because it is at equal distance from previous prime (1401761) and next prime (1401767).

It is not an unprimeable number, because it can be changed into a prime (1401761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1562 + ... + 2289.

It is an arithmetic number, because the mean of its divisors is an integer number (125832).

2^1401764 is an apocalyptic number.

1401764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1401764 is an abundant number, since it is smaller than the sum of its proper divisors (1618204).

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

1401764 is a wasteful number, since it uses less digits than its factorization.

1401764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3875 (or 3873 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1401764 is about 1183.9611480112. The cubic root of 1401764 is about 111.9158594238.

The spelling of 1401764 in words is "one million, four hundred one thousand, seven hundred sixty-four".