1402920 has 80 divisors (see below), whose sum is σ = 4726260. Its totient is φ = 373248.

The previous prime is 1402901. The next prime is 1402937. The reversal of 1402920 is 292041.

It can be written as a sum of positive squares in 2 ways, for example, as 1285956 + 116964 = 1134^2 + 342^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1402893 and 1402902.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3024 + ... + 3456.

2^1402920 is an apocalyptic number.

1402920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1402920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2363130).

1402920 is an abundant number, since it is smaller than the sum of its proper divisors (3323340).

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

1402920 is a wasteful number, since it uses less digits than its factorization.

1402920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1402920 is about 1184.4492390981. The cubic root of 1402920 is about 111.9466157151.

Adding to 1402920 its reverse (292041), we get a palindrome (1694961).

The spelling of 1402920 in words is "one million, four hundred two thousand, nine hundred twenty".