1405415228 has 24 divisors (see below), whose sum is σ = 2976174432. Its totient is φ = 566889984.

The previous prime is 1405415213. The next prime is 1405415273. The reversal of 1405415228 is 8225145041.

It is a junction number, because it is equal to n+sod(n) for n = 1405415194 and 1405415203.

It is a congruent number.

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, 1475801 + ... + 1476752.

It is an arithmetic number, because the mean of its divisors is an integer number (124007268).

Almost surely, 2^1405415228 is an apocalyptic number.

It is an amenable number.

1405415228 is an abundant number, since it is smaller than the sum of its proper divisors (1570759204).

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

1405415228 is a wasteful number, since it uses less digits than its factorization.

1405415228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952581 (or 2952579 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 1405415228 is about 37488.8680543972. The cubic root of 1405415228 is about 1120.1294567622.

The spelling of 1405415228 in words is "one billion, four hundred five million, four hundred fifteen thousand, two hundred twenty-eight".