1408420740 has 24 divisors (see below), whose sum is σ = 3943578240. Its totient is φ = 375578848.

The previous prime is 1408420711. The next prime is 1408420751. The reversal of 1408420740 is 470248041.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1408420698 and 1408420707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11736780 + ... + 11736899.

It is an arithmetic number, because the mean of its divisors is an integer number (164315760).

Almost surely, 2^1408420740 is an apocalyptic number.

1408420740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1408420740 is an abundant number, since it is smaller than the sum of its proper divisors (2535157500).

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

1408420740 is a wasteful number, since it uses less digits than its factorization.

1408420740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23473691 (or 23473689 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 1408420740 is about 37528.9320391615. The cubic root of 1408420740 is about 1120.9273622449.

Adding to 1408420740 its reverse (470248041), we get a palindrome (1878668781).

The spelling of 1408420740 in words is "one billion, four hundred eight million, four hundred twenty thousand, seven hundred forty".