1430940 has 48 divisors (see below), whose sum is σ = 4580352. Its totient is φ = 326976.

The previous prime is 1430939. The next prime is 1430953. The reversal of 1430940 is 490341.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1284 + ... + 2123.

It is an arithmetic number, because the mean of its divisors is an integer number (95424).

2^1430940 is an apocalyptic number.

1430940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1430940 is an abundant number, since it is smaller than the sum of its proper divisors (3149412).

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

1430940 is a wasteful number, since it uses less digits than its factorization.

1430940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3426 (or 3424 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1430940 is about 1196.2190434866. The cubic root of 1430940 is about 112.6869976420.

The spelling of 1430940 in words is "one million, four hundred thirty thousand, nine hundred forty".