1420405415 has 16 divisors (see below), whose sum is σ = 2002474656. Its totient is φ = 953558400.

The previous prime is 1420405409. The next prime is 1420405423. The reversal of 1420405415 is 5145040241.

It is not a de Polignac number, because 1420405415 - 2³⁰ = 346663591 is a prime.

It is a super-2 number, since 2×1420405415² = 4035103085922644450, which contains 22 as substring.

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, 992576 + ... + 994005.

It is an arithmetic number, because the mean of its divisors is an integer number (125154666).

Almost surely, 2^1420405415 is an apocalyptic number.

1420405415 is a deficient number, since it is larger than the sum of its proper divisors (582069241).

1420405415 is a wasteful number, since it uses less digits than its factorization.

1420405415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986610.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1420405415 is about 37688.2662774503. The cubic root of 1420405415 is about 1124.0978222191.

Adding to 1420405415 its reverse (5145040241), we get a palindrome (6565445656).

The spelling of 1420405415 in words is "one billion, four hundred twenty million, four hundred five thousand, four hundred fifteen".