1389040249470 has 32 divisors (see below), whose sum is σ = 3352966533792. Its totient is φ = 368269629312.

The previous prime is 1389040249463. The next prime is 1389040249477. The reversal of 1389040249470 is 749420409831.

It is an interprime number because it is at equal distance from previous prime (1389040249463) and next prime (1389040249477).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389040249477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133813717 + ... + 133824096.

It is an arithmetic number, because the mean of its divisors is an integer number (104780204181).

Almost surely, 2^{1389040249470} is an apocalyptic number.

1389040249470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1389040249470 is an abundant number, since it is smaller than the sum of its proper divisors (1963926284322).

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

1389040249470 is a wasteful number, since it uses less digits than its factorization.

1389040249470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267637996.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 1389040249470 in words is "one trillion, three hundred eighty-nine billion, forty million, two hundred forty-nine thousand, four hundred seventy".