1429155240 has 64 divisors (see below), whose sum is σ = 4292948160. Its totient is φ = 380620800.

The previous prime is 1429155227. The next prime is 1429155251. The reversal of 1429155240 is 425519241.

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, 92040 + ... + 106440.

It is an arithmetic number, because the mean of its divisors is an integer number (67077315).

Almost surely, 2^1429155240 is an apocalyptic number.

1429155240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1429155240 is an abundant number, since it is smaller than the sum of its proper divisors (2863792920).

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

1429155240 is a wasteful number, since it uses less digits than its factorization.

1429155240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15242 (or 15238 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 1429155240 is about 37804.1696113008. The cubic root of 1429155240 is about 1126.4012800386.

The spelling of 1429155240 in words is "one billion, four hundred twenty-nine million, one hundred fifty-five thousand, two hundred forty".